History of the Sternoptixinae, a family of the osseous fishes, and their anatomical peculiarities : with a description of the Sternoptix celebes, a species not hitherto noticed / by P.D. Handyside.

Date:
[1839?]
Catalogue details

Licence: Public Domain Mark

Credit: History of the Sternoptixinae, a family of the osseous fishes, and their anatomical peculiarities : with a description of the Sternoptix celebes, a species not hitherto noticed / by P.D. Handyside. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    The Caudal Fin is attached, as in the salnionidaj, to a very fleshy root, being moved by very powerful muscles. It is forked, and consists of thirty-six flattened, articulated, firm, and highly clastic rays. Tliese are separated by a deep cleft into two conical fasciculi, the lower one being deeper, stronger, and more elongated, while each is inserted into the free border of one of the two segments of the semilunar shaped terminal caudal vertebra.* The seven highest rays of the root of the tail arise together from the integuments over the three or four last superior spinous pro- cesses, while the four lowest rays proceed from a line near the apices of the two last inferior spinous processes.t The Pectoral Fins in this species are each furnished with ten soft rays. The Ventral Fins present each seven soft rays. * Plntp TI. fig. 1. t Ibid. Edinbukqh, 4 SuROEON.s' Square, Oct. 1. 1839.